content: /*
   * Copyright (C) 2016 Jake Wharton
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package hu.akarnokd.rxjava3.retrofit;
  
  import io.reactivex.rxjava3.core.*;
  import io.reactivex.rxjava3.disposables.Disposable;
  import io.reactivex.rxjava3.exceptions.*;
  import io.reactivex.rxjava3.plugins.RxJavaPlugins;
  import retrofit2.*;
  
  final class CallExecuteObservable<T> extends Observable<Response<T>> {
    private final Call<T> originalCall;
  
    CallExecuteObservable(Call<T> originalCall) {
      this.originalCall = originalCall;
    }
  
    @Override protected void subscribeActual(Observer<? super Response<T>> observer) {
      // Since Call is a one-shot type, clone it for each new observer.
      Call<T> call = originalCall.clone();
      CallDisposable disposable = new CallDisposable(call);
      observer.onSubscribe(disposable);
      if (disposable.isDisposed()) {
        return;
      }
  
      boolean terminated = false;
      try {
        Response<T> response = call.execute();
        if (!disposable.isDisposed()) {
          observer.onNext(response);
        }
        if (!disposable.isDisposed()) {
          terminated = true;
          observer.onComplete();
        }
      } catch (Throwable t) {
        Exceptions.throwIfFatal(t);
        if (terminated) {
          RxJavaPlugins.onError(t);
        } else if (!disposable.isDisposed()) {
          try {
            observer.onError(t);
          } catch (Throwable inner) {
            Exceptions.throwIfFatal(inner);
            RxJavaPlugins.onError(new CompositeException(t, inner));
          }
        }
      }
    }
  
    private static final class CallDisposable implements Disposable {
      private final Call<?> call;
      private volatile boolean disposed;
  
      CallDisposable(Call<?> call) {
        this.call = call;
      }
  
      @Override public void dispose() {
        disposed = true;
        call.cancel();
      }
  
      @Override public boolean isDisposed() {
        return disposed;
      }
    }
  }
  